نتایج جستجو برای: mode
تعداد نتایج: 223529 فیلتر نتایج به سال:
Weldability of high carbon steels due to the high percentage of carbon and consequently formation of martensitic structure is very poor. In this research, resistance spot welding of eutectoid high carbon steel 1075 is experimentally and numerically investigated from various points of view. The effect of welding current as one of the most effective parameters on failure mode, mechanical properti...
Weldability of high carbon steels due to the high percentage of carbon and consequently formation of martensitic structure is very poor. In this research, resistance spot welding of eutectoid high carbon steel 1075 is experimentally and numerically investigated from various points of view. The effect of welding current as one of the most effective parameters on failure mode, mechanical properti...
در مقاله حاضر ارتعاشات آزاد صفحات چند دهانه ای ممتد در دو جهت بروش receptance مورد بحث و بررسی قرار گرفته است . برای اینکه بتوان مسئله را حل نمود، در آغاز با توجه به سه روش مختلف ارتعاشات آزاد صفحات ممتد در یک جهت بصورت تحلیلی حل شده است ، سپس باتوجه به اصل سوپرپوزیشن و حلی که برای یک جهت انجام گردیده، سعی شده است که مسئله مورد بحث حل شود که باتوجه به روش receptance به مشکلاتی دراین مورد برخورد...
this study focuses on tracing the clearly defined elements of magic realism in toni morrison’s song of solomon as an illustrious african american example of the mode. magic realism is a fictional technique that combines fantasy with raw physical reality in a search for truth beyond that available from the surface of everyday life. toni morrison, as a distinguished african-american practitioner ...
In this article, the sliding mode control of frequency load control of power systems is studied. The study areaconsists of a system of water and heat. First, a mathematical model of the proposed system disturbances ismade and then sliding control mode for frequency load control is provided. By the system simulation andsliding mode control, it can be shown that the damping of oscillations is wel...
conclusions switching ams off may increase biventricular pacing in some patients. case presentation in this case series, we present a combination of far field sensing and automatic mode switching (ams) in six patients. it is found that this combination causes ventricular sensing (vs) episodes with wide qrs and no synchronization. we turn off the ams and alleviate the problem. introduction cardi...
In this paper, a novel approach for two-loop control of the DC-DC Ćuk converter in discontinuousconduction mode is presented using a sliding mode controller. The proposed controller can regulatethe output of the converter in a wide range of input voltage and load resistance. Controllerparameters are selected using PSO algorithms. In order to verify the accuracy and efficiency of thedeveloped sl...
Brushless doubly fed machine (BDFM) is indeed an induction machine which has two windings in the stator and a cage rotor with a special design. Due to absence of brushes and slip rings, this machine is considered for the applications needs high reliability, such as wind turbines. In this paper, stead state performance of BDFM in synchronous mode of operation, the most interesting mode of operat...
اندازه گیری، اجرا و تحلیل راهکارهای کاهش زمان انتظار مراجعین به مراکز درمانی عمومی بر پایه شبیه سازی
زمینه: مدیریت یک مرکز بیماران سرپایی بسیار مشکل است.همیشه مهمترین مشکلی که مدیریت در این مراکز با آن مواجه است زمان انتظار طولانی بیماران است و بدتر اینکه زمان مشاوره و سرویس گیری بیمار بسیار کمتر از زمان انتظار است.سیستمهای مراقبت از سلامت کاملا پیچیده و دارای منابع محدود هستند. لازم است راهی بیابیم تا هم رضایت بیمار و هم بازده کلی سیستم افزایش یابد.جهت افزایش رضایت بیمار و بازده کلی سیستم بای...
introduction radon is a colorless and tasteless gas which exists in most soils. it is a substance that poses a potential risk for lung cancer in case a person is exposed to high levels over long periods of time. the environmental protection agency (epa) estimates that 90% of lung cancers per year are caused by radon. the aim of this paper is to estimate the absorbed doses of 222rn by mcnpx simu...
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